MCP Task in a workflow Add Connection is not working

API Bugs
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1

Issue Summary:
When creating a new workflow in Agent Builder → Workflows, adding an MCP task and selecting “Add Server” or “Add Connection” causes the “Add connector” modal to freeze with an indefinite loading spinner. This occurs with a fresh workflow and default MCP task (no custom configuration). DevTools shows repeated warnings about “Missing Description or aria-describedby” and the network tab logs a 400 Bad Request to https://api.openai.com/v1/dashboard/workflows//versions.
Troubleshooting steps taken: browser/device changes, clearing cache/cookies, permissions review, and user role verification—all unsuccessful.
Impact: Unable to add or configure MCP connectors; workflow building is blocked.
Suspected cause: Platform-level UI/backend bug.

When I add MCP task in a workflow, at that time only I get the error

index-CVWRVGa0.js:66 POST shortned link to openapi/v1/dashboard/workflows/wf_69186dbe56088190bc0c87ce779efd6b06eb85a544cb6667/versions 400 (Bad Request)
(anonymous) @ index-CVWRVGa0.js:66
l @ index-CVWRVGa0.js:53
fetch @ index-CVWRVGa0.js:87
createWorkflowVersion @ index-CVWRVGa0.js:103
mutationFn @ sJu5whtbNQ.js:1
fn @ index-CVWRVGa0.js:25
C @ index-CVWRVGa0.js:25
6e @ index-CVWRVGa0.js:25
t @ index-CVWRVGa0.js:25
execute @ index-CVWRVGa0.js:25
await in execute
mutate @ index-CVWRVGa0.js:25
(anonymous) @ index-CVWRVGa0.js:41
ee.debounce.leading @ sJu5whtbNQ.js:1
kt @ index-CVWRVGa0.js:110
Ft @ index-CVWRVGa0.js:110
Zs @ index-CVWRVGa0.js:110
m @ sJu5whtbNQ.js:1
(anonymous) @ sJu5whtbNQ.js:1
(anonymous) @ index-CVWRVGa0.js:66
n @ index-CVWRVGa0.js:66
(anonymous) @ Ctvgxq2-sd.js:1
n.setState @ index-CVWRVGa0.js:74
Cs.addNode @ Ctvgxq2-sd.js:1
(anonymous) @ sJu5whtbNQ.js:1
onAddNode @ sJu5whtbNQ.js:1
f @ sJu5whtbNQ.js:1
h @ index-CVWRVGa0.js:103
(anonymous) @ index-CVWRVGa0.js:103
Vb @ index-CVWRVGa0.js:103
Fg @ index-CVWRVGa0.js:103
nv @ index-CVWRVGa0.js:103
xT @ index-CVWRVGa0.js:103
i @ index-CVWRVGa0.js:66

2 Likes
2

If somebody knows if there is a better way to report a bug. ChatGPT suggests one, Support AI gives another suggestions of menus which we could not find in the UI.

I am spending lot of time and energy in this.

3

I also see this

{
  "error": {
    "message": "You didn't provide an API key. You need to provide your API key in an Authorization header using Bearer auth (i.e. Authorization: Bearer YOUR_KEY). You can obtain an API key from https://platform.openai.com/account/api-keys.",
    "type": "invalid_request_error",
    "param": null,
    "code": null
  }
}
4

I can confirm that I have this same issue.

When creating a new workflow in Agent Builder → Workflows, adding an MCP task and selecting “Add Server” or “Add Connection” causes the “Add connector” modal to freeze with an indefinite loading spinner. This occurs with a fresh workflow and default MCP task (no custom configuration).

5

Hey @Sushant_Raut and @ndgold

Thank you for bringing this to our attention.

This has been fixed by OpenAI team, and you should now be able to add MCP tools successfully.

Please let us know if you encounter any further issues.

1 Like
6

Just confirming that it is fixed / solved. Thanks!